I thought this was very good, and I have to say that I am a little saddened by all the negative comments. Unless I missed something, just because a piece of comedy does not sarcastically berate the rest of the world does not make it bad. There are many types of comedy, and just because you may not like a particular one (or, more probably, only like a particular type) does not make all the rest terrible.
Also, so what if it makes fun of DnD, it was done in good humour, not trying to make DnD players feel stupid...
Whatever, I thought it was excellent, well done!